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Fluid Mechanics - Coggle Diagram
Fluid Mechanics
Hydrostatic
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Topics from thermodynamics apear here, gas laws and atmospherics pressure. Hydrostatics explains how atmospheric pressure decreases with altitude, linking to the ideal gas law and weather systems.
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Fluids at rest and the forces acting on them. It focuses on how pressure varies within a fluid and how fluids exert forces on submerged or floating objects
Gravity (Buoyant Force)
- Fluids experience a weight force due to gravity
- The difference in pressure causes buoyancy, which governs floating and sinking behavior.
Pressure in a Fluid:
- Pressure increases with depth due to the weight of the fluid above it.
- P=P0 + ρgh
Net Force
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In Mechanics, there are many times where we studies equilibrium of particles and rigid bodies, but not with liquids
Mass flow
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Energy transfers, heating and cooling systems. In general, the understading of Mass Flow is important for HVAC systems
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Bernoulli equation
the conservation of energy in a fluid flow. It relates pressure, velocity, and height in a moving fluid.
For an incompressible, steady, frictionless flow, Bernoulli’s equation states:
P +1/2 ρV^(2) + ρgh = constant
Key Assumptions:
- Steady flow
- Incompressible fluid
- No viscosity (ideal fluid, no energy loss due to friction)
- Along a streamline
Conservation of energy and mass, these are topics that appeared in Physics.
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Pressure Drop
The decrease in pressure as a fluid flows through a pipe, channel, or system due to friction, obstructions, and flow resistance.
Causes of Pressure Drop:
- Frictional Losses: Resistance between the fluid and the pipe walls
- Flow Restrictions: Bends, valves, fittings, and sudden expansions or contractions
- Elevation Changes: Gravity affects pressure in vertical flow systems
- Fluid Properties: Viscosity and density influence resistance
